GB/T 45362-2025 PDF English
US$215.00 · In stock · Download in 9 secondsGB/T 45362-2025: Textiles - Determination of thermal effusivity of fabrics - Modified transient plane source method Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 45362-2025 | English | 215 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Textiles - Determination of thermal effusivity of fabrics - Modified transient plane source method
| Valid |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 45362-2025
GB/T 45362-2025: Textiles - Determination of thermal effusivity of fabrics - Modified transient plane source method
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT45362-2025
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 59.080.30
CCS W 04
Textiles - Determination of thermal effusivity of fabrics -
Modified transient plane source method
Issued on: FEBRUARY 28, 2025
Implemented on: SEPTEMBER 01, 2025
Issued by. State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Terms and definitions... 4
4 Principle... 5
5 Test instruments... 5
6 Specimen preparation... 7
7 Standard atmosphere for humidity control and testing... 7
8 Test steps... 7
9 Result calculation... 8
10 Test report... 8
Foreword
This document was drafted in accordance with the rules given in GB/T 1.1-2020
"Directives for standardization - Part 1.Rules for the structure and drafting of
standardizing documents".
Attention is drawn to the possibility that some of the elements of this document may be
the subject of patent rights. The issuing authority shall not be held responsible for
identifying any or all such patent rights.
This document was proposed by China National Textile and Apparel Council.
This document shall be under the jurisdiction of National Technical Committee on
Textiles of Standardization Administration of China (SAC/TC 209).
The drafting organizations of this document. Ningbo Haishi Textile Technology Co.,
Ltd., Shenzhen Shangshi Technology Co., Ltd., Anta (China) Co., Ltd., Ningbo
Customs Technology Center, Guangdong Jusheng New Materials Technology Co., Ltd.,
Shaoxing Taiding Graphene Technology Co., Ltd., China Textile Standard Inspection
and Certification Co., Ltd., Fujian Yubang Textile Technology Co., Ltd., Phase Change
Energy Storage (Beijing) Technology Co., Ltd., Zhejiang Zhuogu Clothing Co., Ltd.,
Jiangyin Heilan Technology Co., Ltd., China University of Metrology, Zhejiang Sci-
Tech University, Ningbo Institute of Inspection and Quarantine Science and Technology
(Ningbo National Inspection Trade Facilitation Service Center), Dandao Technology
Development (Guangdong) Co., Ltd., Youngor Garment Holdings Co., Ltd., Wuyi
University.
Main drafters of this document. Ren Qingqing, Ma Leilei, Feng Rui, Fu Kejie, Zheng
Min, Tan Wanchang, Yan Ying, Wang Qingmiao, Gao Quan, Li Zhengrong, Huang Qi,
Wu Xiaohang, Yao Ruimin, Zou Jie, Ying Zhaohui, Wu Ningxi, Huang Gang, Fu
Daodan, Cui Kai.
Textiles - Determination of thermal effusivity of fabrics -
Modified transient plane source method
1 Scope
This document describes the method for testing the thermal effusivity of fabrics using
a modified transient plane source method.
This document is applicable to woven fabrics, knitted fabrics and nonwoven fabrics.
For fabrics containing fillings, refer to this document.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 3820, Determination of thickness of textiles and textile products
GB/T 6529, Textiles -- Standard atmospheres for conditioning and testing
GB/T 8170, Rules of rounding off for numerical values and expression and
judgement of limiting values
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 modified transient plane source; MTPS
A device with a single-sided planar heat source and a heating guard ring mounted
perpendicular to the planar heat source, which allows a transient heat pulse to enter the
sample by contacting one side of the specimen.
3.2 thermal effusivity
It characterizes the ability of one material to exchange heat when in contact with another
material.
NOTE. The definition of thermal effusivity is shown in formula (1).
6 Specimen preparation
If the single layer thickness of the specimen reaches or exceeds 1.0 mm, take 5
specimens from the sample to be tested. If the single layer thickness of the specimen is
less than 1.0 mm, take 5 groups of combined specimens from the sample to be tested.
The thickness of each group of combined specimens shall reach or exceed 1.0 mm. Take
several additional specimens from the sample to be tested. When sampling, ensure that
no two specimens contain the same yarn. The size of the specimen shall be able to
completely cover the sensor area.
NOTE. Thicknesses of 1.0 mm and above ensure that heat flow does not penetrate its maximum
test penetration thickness during testing. Ensure that even if the thermal storage coefficient of the
fabric is high, the penetration depth of heat flow during testing remains inside the fabric.
7 Standard atmosphere for humidity control and testing
The humidity control and test standard atmosphere shall be carried out in accordance
with the provisions of GB/T 6529.The specimen shall be humidified and balanced
before the test. During the test, air flow shall be minimized to reduce temperature
fluctuations.
8 Test steps
8.1 Place one specimen or a group of composite specimens with the front side facing
upwards over the sensor of the modified transient plane source and completely cover
the sensor. For composite specimens, each adjacent layer is placed at an angle of 30° to
ensure that each layer of the specimen is not aligned with the adjacent layers.
8.2 Place a 500 g standard weight (pressure of 20 kPa) on top of the specimen to ensure
that the specimen is in close contact with the sensor. If the specimen cannot be in close
contact with the sensor under this pressure or after consultation between the relevant
parties, other pressures may be selected. Use a pressurizing device to apply pressure
and indicate this in the report.
8.3 Start the test. Provide a constant instantaneous power pulse to the heater and the
heating guard ring, so that the temperature of the sample surface rises by 1℃~3℃
within 1 s~3 s.
8.4 Record the thermal effusivity of the specimen.
8.5 Allow the specimen and the apparatus to cool to ambient temperature.
NOTE. The cooling time usually does not exceed 1 min.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of GB/T 45362-2025 be delivered?Answer: The full copy PDF of English version of GB/T 45362-2025 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice. Question 2: Can I share the purchased PDF of GB/T 45362-2025_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 45362-2025_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 45362-2025 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. How to buy and download a true PDF of English version of GB/T 45362-2025?A step-by-step guide to download PDF of GB/T 45362-2025_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "GB/T 45362-2025".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|